Question

how much of the earths land surface is covered with grasslands?
20 to 30 percent
20 to 40 percent
40 to 45 percent
10 to 19 percent

Explanation:

Grasslands cover approximately 20 - 40 percent of the Earth's land surface. This is based on general geographical knowledge about the distribution of different land - cover types on Earth.

Answer:

20 to 40 percent